U.S. Airlines Post Record Fuel Bills as Middle East Re-escalation Hits Q2 Earnings
A 20% jet fuel price spike during earnings season left carriers absorbing hundreds of millions in unexpected costs while trying to guide a deeply uncertain second half.
United Airlines said last week (week of 2026-07-13) it expects nearly $6 billion in added fuel expense for full-year 2026 compared with what it projected at the start of the year. That figure, disclosed alongside second-quarter results where fuel costs jumped $2.3 billion or 84% year-over-year, captures the scale of the damage that Middle East re-escalation has inflicted on the U.S. aviation sector over a remarkably compressed period.6
The timing was brutal. Carriers were mid-earnings season when hostilities resumed, shattering a three-week U.S.-Iran ceasefire arrangement and sending ICE Brent crude front-month back above $100 per barrel. Jet fuel prices, already tightening since March, spiked roughly 20% over the two weeks that coincided precisely with April-June reporting and third-quarter guidance. Executives were forced to price in a cost shock they could not yet quantify for investors.6,5
American Airlines posted second-quarter revenue of $16.7 billion this month (July 2026) — the highest quarterly result in company history, up 16.3% year-over-year — but fuel expense surged more than $2.2 billion, or 83% from the prior year. Southwest, reporting the week of 2026-07-20, beat consensus on earnings but flagged a $900 million year-over-year increase in fuel costs. Record revenue lines are being hollowed out by a single input.6
The origins of this squeeze stretch back to February 28, when military action in the Middle East triggered the de facto closure of the Strait of Hormuz, according to EIA quarterly data. Petroleum markets spent the entire second quarter navigating disrupted crude and product flows through the strait, which drove prices higher and more volatile through most of the period.5,1
Between January and May, jet fuel prices rose three times faster than ticket prices, saddling global carriers with an estimated $100 billion in extra fuel costs. The International Air Transport Association had already warned that the cost surge would halve global airline net profits in 2026 to $23 billion. Carriers tried to push costs through to passengers — Raymond James data showed average domestic airfares booked one week ahead of travel were up 34.1% year-over-year as of June 8 (2026-06-08) — but fare increases trailed the fuel curve badly.3
A brief reprieve appeared in late June. ICE Brent crude front-month fell to around $79 per barrel on Monday, June 22 (2026-06-22), nearly $20 per barrel lower than peak conflict levels, after the U.S.-Iran peace deal was struck. Analysts at the time estimated the cost relief could slash the U.S. airline industry's annual fuel bill by more than $40 billion. Southwest moved to lock in some of that relief: the carrier arranged a shipment of about 12.6 million gallons of jet fuel that arrived in Los Angeles at the end of May, an attempt to ease upward pressure ahead of anticipated re-escalation.3,6
That window closed quickly. The collapse of the ceasefire and the return of Strait of Hormuz tensions pushed ICE Brent front-month back above $100. Iranian attacks on two UAE tankers in the strait rattled physical supply confidence again, though analysts noted as of mid-July (2026-07-14) it was too early to conclude the broader downtrend had reversed. ICE Brent front-month was trading at $87.51 per barrel as of Monday, July 28 (2026-07-28), with the OPEC basket at $97.21, suggesting the market remains elevated well above the brief June lows.4,6
Demand destruction is now visible in the IEA data. Jet fuel and kerosene demand fell 210,000 b/d from pre-conflict expectations, while global oil demand overall is projected to decline 420,000 b/d for full-year 2026 — about 1.3 million b/d below where forecasters stood before hostilities began. U.S. domestic airline capacity reflects the same pressure: seat growth is projected at just 0.4% year-over-year in the third quarter, down from a pre-war expectation of 4.6%.2,3
United raised $3.7 billion in new liquidity through private bank transactions during the second quarter, a signal that management is hedging against continued cost volatility rather than betting on a sustained oil price decline. Goldman Sachs has lowered its fourth-quarter ICE Brent forecast to $80 per barrel from $90, while Morgan Stanley projects $90 in the third quarter before a pullback to $80 in the fourth. If either bank is right, carriers could see some relief in late 2026 — but the guidance already given to investors was constructed against a cost backdrop that shifted weekly.6,4
The question hanging over the rest of the year is whether Hormuz transit risk reprices structurally or fades as a geopolitical discount. Jet fuel and kerosene have already absorbed 210,000 b/d in demand destruction from pre-conflict levels, per IEA data. A sustained return toward $100 crude would stress carriers whose Q3 guidance was issued under conditions that no longer hold.2